Numeral-wheel-resetting device.



H. E. DBLVIN. NUMERAL WHEEL RESETTING DEVICE. APPLICATION FILED JULY 22,1912.

1,1 12,895. 'Patentad m. 6, 1m.

DELVIN, or New YORK, N. Y.

NU'MERLL-NHEBLJtESLETTING DEVISE.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application filed July 22, 1912. Serial No. 710.349.

To all i071 out it may concern le it l(l1OWIl that l, llyvu'r E. DnLvIX,a citizen of the United States, and a resident of New York. in thecounty of New York and State of New York, have invented certain new andusetul Improvements in Numeralll heehllesettiug Devices, of which thefollowing is a specification.

This invention relates to improvements in registering devices andparticularly to hat class in which a row of numeral wheels are displayedshowingthe sum total arrived at by adding or subtracting mechanismscombined therewith.

The objectv ol? the invention to enable an operator to set at zero orinitial posh tiou. the numeral wheels in such mechanisms. by novel andconvenient means, exi'ieditiously and positively.

This object is attained by the instrumentation hereinafter described andshown in the accompanyiiur drawings. in which l in'ure 1 is z partialplan view of a registering mechanism, the cover being removed. Fig. 2 anend view oi the same, the side plate being removed to show the generalarrangement and relation of parts.

"in. 8 is a pcrspcctiw view oi the cam washtaoperating the engagingmeans. Fig. -l is a similar perspe tive view of a numeral wheel and itsdrive gear. Fig. 5 is a like perspective view oi the ratchet and itsshaft. Fig. (i a perspective view or the sleeve and shatt upon which thenumeral wl'zeels are mountcth Fig. 7 a similar view sluuvingr thearrannemtuils of the operative parts involved. and. hip. 8 is atransverse sectional view, ltiliti'l on line 8 8 ot Fig. 7.

'l 'he. uun'icral wheels or disks it). which are free to revolve ineither direction. have on their periphery the numerals 0 to t) inclu.sive and are arranged side by side with a gear wheel 11 secured as; aunit to each numeral disk, the near wheel transmitting motion trom atuating mechanism not being: shown. These. numeral wheels are mounted soas to revolve treely upon the sleeve 20, partially ei'ivclopingr theshaft 12 near one end of which is a fixed collar 13, having groove 14adapted to act as the bearing for the rod l5. which is rigidly connectedwith the. curved plate 16 normally resting on the shaft 12 and providedat its outer front edge with a series of projections 17 arranged so thateach projection is in register with an internal tooth lS torrned in theenlarged bore 18' )f the gear 11. The teeth lo are arranged with respectto the numerals so that when the entire row of ciphers appear inalinement the several teeth 18 will also be in alineinent and will be inposition to engage with the projections 17 of the plate. The oppositeend of the plate 16 is revolubly secured in the gear it) which transmitsmotion to it. The plate 16 is adapted to operate within an open space orgroove 21 formed in the sleeve 20 and is driven by the gear 19 rotatablewithin a recess formed in the inner side of the irai'ie plate at theopposite side and in the corresponding frame 26 is rigidly serurcd athin collar or washer 27 through which the shatt 12 extends and which isprovided with an annular opening 28 havinna recess or depression 25)acting as an internal cam adapted to receive the end of a lever 30pressed against the said recess by means at the spring 31 and soarranged that when the lever is disposed within the recess the numeralwheels and gears are tree to revolve ou the surface of the sleeve overthe plate 16 and clear of the teeth t7. the gears being): rotated as isusual.

illcshiug; with the gearlflis a spur gear 36 ecured to the shaft 35which has rigidly upon it the ratchet 3T actuated by the pawl :38 havingthe s n-inn; 39 and being pivotedto the plate 40 secured to the side ofthe. pinion -ll. both pinion and plate being freely mounted on thesha'tt 33. en the step 40,

while-.thc ste )8 3(3' and ll) respectivel 1 receive the spur ejcar andpawl plate.

hl otion is conveyed to the pinion ll by means of the rat-l: 42 whenpressure is applied to the button head 43 ot' the latter and theresistance of the return spring ll overcome; the rack bar has a bearingin the cover plate (not shownl and also a foot bearing -15.

ll hcucvcr it may be desired to set :11 of the numeral wheels to theirinitial position the numeral wheel driving: mechanism is disengaged andthe button if; depressed whereupon-pinion l l is caused to rotate,transmitting motion to the gear 13' through the pawl and ratchet wheel-37 which caused the near '19 to revolve, acting to turn the plate It;around the shaft the projections 17 picking up the. teeth 18 in thenumeral wheel gears ll at any point where they may chance to be, movingthem all into alinemeiit so that a row of liliegeharacters appear at theopening, Where vist'ial registration is obtained. Obviously the firstefi'ectsof rotating the gear 19 is to raise the projections above theconcentric surface of the sleeve 20 by reason of oscillati-ngthe leverso as to cause it to leave the recess 29 and travel in;

"fetid disks, en'gagn'ip means combined With an annular path onecomplete revolution around the interior of the Washer 27. Upon releasingthe button it will return to its orig-inalnormal position at which timethe lever 30 is in the depression 29 and the projeetion 1! removed outof engagement with the teeth 19 so that the gears and the numoral wheelscan revolve 'as"i"equire'd for corn utation. I

aving thus described my invention and the manne ryof its l1$e,'-Whai Iclaim as new and desire to secure by Letters Patent is:

I. Ina device of the class described, the Icoinbination witha'plurality' of independent Qindicating disks,'-of a fixed shaft, asleeve rotatable on said shaft and on Which'said disks arerevolublymounted, a toothed flijnember,

lon itudinally disposed in a slot formed in" sai sleeve, means forengaging said toothed 'member with the interior of said disks means forturning them to a predetermined point uniformly and means fordisengaging said disks when so turned, all of said means being combinedwith and dependent upon the rotation of said sleeve.

' 2. In a device of the class described, the combination with aplurality of numeral disks and a housing therefor, of a shaft for saiddisks, a sleeve revolubly mounted thereon having a longitudinal groovetherethrough, a pawl plate carried in said groove pivoted at each endnear the edge, a plural-= ity of projections, corresponding to thenumeral disks formed uponits outer opposite edge, means for causing saidprojections to.

engage internally with the numeral disks and means combined therewithwhereby said disks may be rotated to a uniform position relative to thenumerals thereon.

3. In a device of the class described, the combination with a shaft, asleeve rotatable thereon, .a frame therefor and a plurality of numeraldisks mounted on said sleeve, of a plate fitted in a longitudinal slotin said sleeve and pivoted to oscillate in the slot, at

lever attached to said plate at one end thereof, a spring adapted toforce said plate inwardly, a camset in the frame engaging said leveradapted, to force said plate'outwardly, a projection in a recessedportion of ntercepting said projections qrhe turned to register aunierals, and means for acsaidplate fo whereby the uniform row 0 tuatingsaid pla z a. Ina device of the class described, the

combination ivitha shaft and a plurality of,

5. In a device of the class described, the combination with a pluralitof independently, rotatable indicating disks, of a tooth formed in anannular-recess in each of said disks concentric fv'vith, their bore, asleeve upon which said disks are freely mounted to turn in eitherdirection, said sleeve having alongitudinal opening, a shaft within saidsleeve, a curved plate pivotally disposed in said opening, a. gear atone end of said shaft, connections between said plate and said geargrhereby the plate may be revolved around fthe shaft, a lever attachedto the other end 'ai d platefan internal cam operatively .cn iging saidlover whereby said plate maybe raised from said shaft and caused toengage with the teeth formed in the disks,

and meansfor revolving said gear whereby the numeral disks are revolved.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HART E. DELVIN. Witnesses i lvanmm E. 'WiLLIs, AUous'rA 1W inss.

ement except when re setting 'sid' and a rack and pinion mechanism or I'operiflnt g said plate

